There are no bad mistakes in maths, only discoveries.

Whenever you find yourself doubting how far you can go, just remember how far you have come.

The wise person knows that no answer is also an answer

Knowledge is of no value unless you put it into practice.

Everything you want is on the other side of fear

A hero is no braver than an ordinary man, but he is braver five minutes longer.

99% of failures come from people who have the habit of making excuses.

Each day is an opportunity to improve. Aim to be that little bit better than yesterday and better tomorrow than today.

I think, therefore I am.

The power of reflection is the most powerful skill you’ll learn.

The boxer is not afraid of being knocked down, he is afraid of not being able to get up again.

Nobody said it’d be easy, they just promised it would be worth it.

Success is a journey, not a destination.

Don't expect to be good at maths or understand things straight away. Be patient and persistent. Rome wasn't built in a day, but they worked on it every single day. 

No matter how bad it gets, you’re still way ahead of those who haven’t even started.